Lighting seems to be broken

[boensaw]

This is fantastic, thank you for making this! unfortunately unless i'm missing something the lighting doesn't seem to work properly? It doesn't respond to lights properly, and there's always a dark polygon on the quad.

You can see it broken in the way I'm talking about on the tree in your own how-to video here: https://youtu.be/4YhwXGbbabg?t=434
Maybe you're already aware? but I thought I'd mention it regardless.

Thanks so much again for making this though, this is a really great tool for godot!